Definition of Alleghanian. Meaning of Alleghanian. Synonyms of Alleghanian

Here you will find one or more explanations in English for the word Alleghanian. Also in the bottom left of the page several parts of wikipedia pages related to the word Alleghanian and, of course, Alleghanian synonyms and on the right images related to the word Alleghanian.

Definition of Alleghanian

Alleghanian
Alleghenian Al`le*ghe"ni*an, a. Also Alleghanian Al`le*gha"ni*an (Biogeography) Pertaining to or designating the humid division of the Transition zone extending across the northern United States from New England to eastern Dakota, and including also most of Pennsylvania and the mountainous region as far south as northern Georgia.

Meaning of Alleghanian from wikipedia

- The Alleghanian orogeny or Appalachian orogeny is one of the geological mountain-forming events that formed the Appalachian Mountains and Allegheny Mountains...
- collision of Laurasia and northern Gondwana as part of the Variscan and Alleghanian orogenies, which began during the Carboniferous approximately 340 million...
- Appalachians, culminating in the collision of North America and Africa (see Alleghanian orogeny). By the end of the Mesozoic Era, the Appalachian Mountains had...
- alteration by retrograde metamorphism and deformation occurred during the Alleghanian orogeny. During the latest part of this orogeny, this segment of the...
- in the docking of some northern terranes in the Marathon, Ouachita, Alleghanian, and Variscan orogenies, respectively. Southern terranes, such as Chortis...
- is unknown, but could have occurred during the Taconic, Acadian, or Alleghanian Orogenies. The terrane comprises Neoproterozoic to Early Cambrian meta-sedimentary...
- folded, faulted, distorted, and metamorphosed during the late Paleozoic Alleghanian orogeny (325 to 260 million years ago). The rugged topography of Blue...
- Purgatory Conglomerate of Rhode Island experienced two generations of Alleghanian folding, and subsequent local shearing. "Pebbles of Purgatory Chasm"...
- The plutons in this region formed during the Taconic, Acadian, and Alleghanian orogeny starting on the eastern side of Laurentia. These plutons date...
- Taconic orogeny and finished during the Carboniferous Period with the Alleghanian orogeny. The reverse faults formed during the various orogenies were...